Improvement in key-fasteners



paint cm.

fastener, as described, composed or a single spring an oblong shape, so as to make a loop long enough to am fitter LYMAN mosaic-0 NAPLES, new YORK.

'Letters Patent No. 114,992, dated May 16, 1871.

IMPROVEMENT IN KEV-FASTENERS.

To all whom it may concern:

Be itknown that I, LYMAN TOBEY, of the town of Naples, county of Ontario and State of New York, have invented a new and improved Mode of Fastening Keys in Locks upon.Doors, so as to prevent burglars from turning them in the lock or pushing them out of the look from the opposite side of the door, which I designate as a burglar-proof door-knob attachment and key-fastener; andI do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawing andto the letters of reference marked thereon.

The nature of my invention consists in the keywire bent upon itself, and one arm secured to the other by a spring-hook after it has surrounded the knob-shank and passed through the key-bow, preventing the displacement or turning of the key;

To enable others to make and use my invention, I will proceed to describe its construction and operation. It is constructed of a piece of wire or iron, bent in pass around the neck of the door-knob and down through the bow of the key..

One side of this loop or spring, about an inch from the end, is to be turned at right angles with a hook on the end of it, so as to reach and hook around the other or long. side of the loop or spring.

The manner of use and adjustment of the loop or spring to the purposes for which it is made is as fol- I lows:

Lock the door, and turn the key in the same direction as far as you can until it .hits in the lock; then unhook the spring or loop, pass it down across the neck of the knob with the long side toward the lock or edge of the door, pass it through the bow of the 'key, and then hitch the other side of the spring, by

the hook, below the key; and thus adjusted, by no contrivance can the spring be unhooked from the opposite side of the door, or the key turned in the lock or pushed therefrom.

It is further claimed that this wire spring thus formed, when not in use upon the door, combines the quality of being a convenient key-ring or holder for the pocket, and can be thus carried, ready to use upon any lock orknob in a room which it is desired to se curefrom the inside.

What I claim, and desire to secure by Letters Patcut, isf The key-fastener, as described, composed of a single spring wire, bent upon itself, and one arm secured to the other by a spring-hook after it has surrounded the knob-shank and passed through the, key-bow.

LYMAN TOBEY.

Witnesses 'ORVILLE F. LEVALLY,

LYMAN ToBnY, Jr. 

